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+/*
+DO NOT TOUCH THIS FILE DIRECTLY. See the README for instructions.
+
+Copyright Mathias Bynens <https://mathiasbynens.be/>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+this.EXPORTED_SYMBOLS = ["jsesc"];
+/*! https://mths.be/jsesc v1.0.0 by @mathias */
+;(function(root) {
+
+ // Detect free variables `exports`
+ var freeExports = typeof exports == 'object' && exports;
+
+ // Detect free variable `module`
+ var freeModule = typeof module == 'object' && module &&
+ module.exports == freeExports && module;
+
+ // Detect free variable `global`, from Node.js or Browserified code,
+ // and use it as `root`
+ var freeGlobal = typeof global == 'object' && global;
+ if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+ root = freeGlobal;
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ var object = {};
+ var hasOwnProperty = object.hasOwnProperty;
+ var forOwn = function(object, callback) {
+ var key;
+ for (key in object) {
+ if (hasOwnProperty.call(object, key)) {
+ callback(key, object[key]);
+ }
+ }
+ };
+
+ var extend = function(destination, source) {
+ if (!source) {
+ return destination;
+ }
+ forOwn(source, function(key, value) {
+ destination[key] = value;
+ });
+ return destination;
+ };
+
+ var forEach = function(array, callback) {
+ var length = array.length;
+ var index = -1;
+ while (++index < length) {
+ callback(array[index]);
+ }
+ };
+
+ var toString = object.toString;
+ var isArray = function(value) {
+ return toString.call(value) == '[object Array]';
+ };
+ var isObject = function(value) {
+ // This is a very simple check, but it’s good enough for what we need.
+ return toString.call(value) == '[object Object]';
+ };
+ var isString = function(value) {
+ return typeof value == 'string' ||
+ toString.call(value) == '[object String]';
+ };
+ var isFunction = function(value) {
+ // In a perfect world, the `typeof` check would be sufficient. However,
+ // in Chrome 1–12, `typeof /x/ == 'object'`, and in IE 6–8
+ // `typeof alert == 'object'` and similar for other host objects.
+ return typeof value == 'function' ||
+ toString.call(value) == '[object Function]';
+ };
+
+ /*--------------------------------------------------------------------------*/
+
+ // https://mathiasbynens.be/notes/javascript-escapes#single
+ var singleEscapes = {
+ '"': '\\"',
+ '\'': '\\\'',
+ '\\': '\\\\',
+ '\b': '\\b',
+ '\f': '\\f',
+ '\n': '\\n',
+ '\r': '\\r',
+ '\t': '\\t'
+ // `\v` is omitted intentionally, because in IE < 9, '\v' == 'v'.
+ // '\v': '\\x0B'
+ };
+ var regexSingleEscape = /["'\\\b\f\n\r\t]/;
+
+ var regexDigit = /[0-9]/;
+ var regexWhitelist = /[ !#-&\(-\[\]-~]/;
+
+ var jsesc = function(argument, options) {
+ // Handle options
+ var defaults = {
+ 'escapeEverything': false,
+ 'quotes': 'single',
+ 'wrap': false,
+ 'es6': false,
+ 'json': false,
+ 'compact': true,
+ 'lowercaseHex': false,
+ 'indent': '\t',
+ '__indent__': ''
+ };
+ var json = options && options.json;
+ if (json) {
+ defaults.quotes = 'double';
+ defaults.wrap = true;
+ }
+ options = extend(defaults, options);
+ if (options.quotes != 'single' && options.quotes != 'double') {
+ options.quotes = 'single';
+ }
+ var quote = options.quotes == 'double' ? '"' : '\'';
+ var compact = options.compact;
+ var indent = options.indent;
+ var oldIndent;
+ var newLine = compact ? '' : '\n';
+ var result;
+ var isEmpty = true;
+
+ if (json && argument && isFunction(argument.toJSON)) {
+ argument = argument.toJSON();
+ }
+
+ if (!isString(argument)) {
+ if (isArray(argument)) {
+ result = [];
+ options.wrap = true;
+ oldIndent = options.__indent__;
+ indent += oldIndent;
+ options.__indent__ = indent;
+ forEach(argument, function(value) {
+ isEmpty = false;
+ result.push(
+ (compact ? '' : indent) +
+ jsesc(value, options)
+ );
+ });
+ if (isEmpty) {
+ return '[]';
+ }
+ return '[' + newLine + result.join(',' + newLine) + newLine +
+ (compact ? '' : oldIndent) + ']';
+ } else if (!isObject(argument)) {
+ if (json) {
+ // For some values (e.g. `undefined`, `function` objects),
+ // `JSON.stringify(value)` returns `undefined` (which isn’t valid
+ // JSON) instead of `'null'`.
+ return JSON.stringify(argument) || 'null';
+ }
+ return String(argument);
+ } else { // it’s an object
+ result = [];
+ options.wrap = true;
+ oldIndent = options.__indent__;
+ indent += oldIndent;
+ options.__indent__ = indent;
+ forOwn(argument, function(key, value) {
+ isEmpty = false;
+ result.push(
+ (compact ? '' : indent) +
+ jsesc(key, options) + ':' +
+ (compact ? '' : ' ') +
+ jsesc(value, options)
+ );
+ });
+ if (isEmpty) {
+ return '{}';
+ }
+ return '{' + newLine + result.join(',' + newLine) + newLine +
+ (compact ? '' : oldIndent) + '}';
+ }
+ }
+
+ var string = argument;
+ // Loop over each code unit in the string and escape it
+ var index = -1;
+ var length = string.length;
+ var first;
+ var second;
+ var codePoint;
+ result = '';
+ while (++index < length) {
+ var character = string.charAt(index);
+ if (options.es6) {
+ first = string.charCodeAt(index);
+ if ( // check if it’s the start of a surrogate pair
+ first >= 0xD800 && first <= 0xDBFF && // high surrogate
+ length > index + 1 // there is a next code unit
+ ) {
+ second = string.charCodeAt(index + 1);
+ if (second >= 0xDC00 && second <= 0xDFFF) { // low surrogate
+ // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+ codePoint = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
+ var hexadecimal = codePoint.toString(16);
+ if (!options.lowercaseHex) {
+ hexadecimal = hexadecimal.toUpperCase();
+ }
+ result += '\\u{' + hexadecimal + '}';
+ index++;
+ continue;
+ }
+ }
+ }
+ if (!options.escapeEverything) {
+ if (regexWhitelist.test(character)) {
+ // It’s a printable ASCII character that is not `"`, `'` or `\`,
+ // so don’t escape it.
+ result += character;
+ continue;
+ }
+ if (character == '"') {
+ result += quote == character ? '\\"' : character;
+ continue;
+ }
+ if (character == '\'') {
+ result += quote == character ? '\\\'' : character;
+ continue;
+ }
+ }
+ if (
+ character == '\0' &&
+ !json &&
+ !regexDigit.test(string.charAt(index + 1))
+ ) {
+ result += '\\0';
+ continue;
+ }
+ if (regexSingleEscape.test(character)) {
+ // no need for a `hasOwnProperty` check here
+ result += singleEscapes[character];
+ continue;
+ }
+ var charCode = character.charCodeAt(0);
+ var hexadecimal = charCode.toString(16);
+ if (!options.lowercaseHex) {
+ hexadecimal = hexadecimal.toUpperCase();
+ }
+ var longhand = hexadecimal.length > 2 || json;
+ var escaped = '\\' + (longhand ? 'u' : 'x') +
+ ('0000' + hexadecimal).slice(longhand ? -4 : -2);
+ result += escaped;
+ continue;
+ }
+ if (options.wrap) {
+ result = quote + result + quote;
+ }
+ return result;
+ };
+
+ jsesc.version = '1.0.0';
+
+ /*--------------------------------------------------------------------------*/
+
+ // Some AMD build optimizers, like r.js, check for specific condition patterns
+ // like the following:
+ if (
+ typeof define == 'function' &&
+ typeof define.amd == 'object' &&
+ define.amd
+ ) {
+ define(function() {
+ return jsesc;
+ });
+ } else if (freeExports && !freeExports.nodeType) {
+ if (freeModule) { // in Node.js or RingoJS v0.8.0+
+ freeModule.exports = jsesc;
+ } else { // in Narwhal or RingoJS v0.7.0-
+ freeExports.jsesc = jsesc;
+ }
+ } else { // in Rhino or a web browser
+ root.jsesc = jsesc;
+ }
+
+}(this));